[Linux-cachefs] Error on 2.6.30.2 (Centos 5.3)

[Duc Le Minh]

*Slow work thread pool: Starting up
Slow work thread pool: Ready
FS-Cache: Loaded
FS-Cache: Netfs 'nfs' registered for caching
CacheFiles: Loaded
FS-Cache: Cache "mycache" added (type cachefiles)
CacheFiles: File cache on dm-0 registered
Pid: 6159, comm: kslowd Not tainted 2.6.30.2 #1
Call Trace:
 [<ffffffffa042fd72>] ? cachefiles_read_waiter+0xd9/0x147 [cachefiles]
 [<ffffffff804b828d>] ? __wait_on_bit+0x60/0x6f
 [<ffffffff8022bc0b>] ? __wake_up_common+0x3f/0x71
 [<ffffffff8022cc89>] ? __wake_up+0x30/0x44
 [<ffffffff8024a4d7>] ? __wake_up_bit+0x28/0x2d
 [<ffffffffa003a7be>] ? ext3_truncate+0x4d7/0x8ec [ext3]
 [<ffffffff80282044>] ? pagevec_lookup+0x17/0x1f
 [<ffffffff8028c3e5>] ? unmap_mapping_range+0x59/0x1ff
 [<ffffffff8022cc89>] ? __wake_up+0x30/0x44
 [<ffffffff8028e39e>] ? vmtruncate+0xc2/0xe2
 [<ffffffff802b84df>] ? inode_setattr+0x22/0x10a
 [<ffffffffa003bacf>] ? ext3_setattr+0x17b/0x1e6 [ext3]
 [<ffffffff802b874d>] ? notify_change+0x186/0x2c9
 [<ffffffffa042b9de>] ? cachefiles_attr_changed+0x133/0x1cd [cachefiles]
 [<ffffffffa042bf7f>] ? cachefiles_lookup_object+0xcf/0x12a [cachefiles]
 [<ffffffffa03c6e47>] ? fscache_lookup_object+0x1a2/0x1e6 [fscache]
 [<ffffffffa03c7b0c>] ? fscache_object_slow_work_execute+0x96f/0xad4
[fscache]
 [<ffffffff80279056>] ? slow_work_thread+0x285/0x43a
 [<ffffffff8024a4fe>] ? autoremove_wake_function+0x0/0x2e
 [<ffffffff80278dd1>] ? slow_work_thread+0x0/0x43a
 [<ffffffff8024a3cf>] ? kthread+0x54/0x81
 [<ffffffff8020c93a>] ? child_rip+0xa/0x20
 [<ffffffffa042bb39>] ? cachefiles_put_object+0x0/0x2e9 [cachefiles]
 [<ffffffff8024a37b>] ? kthread+0x0/0x81
 [<ffffffff8020c930>] ? child_rip+0x0/0x20
CacheFiles: I/O Error: Readpage failed on backing file 200000000000830
FS-Cache: Cache cachefiles stopped due to I/O error*

Please Help me patch file to fix error.

Thanks!